Weird shading artifacts where two vdbs overlap

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All bug reports should include the information below, along with a detailed description of the issue and steps to reproduce it.
A. Operating System, including version (i.e. Win 7, OSX 10.11.2, Ubuntu 14.04, etc.)
B. Graphics Card(s) model (i.e. GTX 580 - 3GB, TITAN, etc.)
C. RAM Capacity (i.e. 6 GB)
D. Nvidia driver version (i.e. 7.50, 7.5.22)
E. OctaneRender Standalone version, if installed (i.e. 2.24.2, 2.23, etc.)
F. OctaneRender plugin version (i.e. v2.25 - 2.21)
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HandcraftedMedia
Licensed Customer
Posts: 70
Joined: Thu Jan 10, 2019 12:15 am

I'm on 19.5.303 and octane 2021.1.5.0.

I'm getting these (image attached) ugly artifacts on the edge of two volumes overlapping. Is there any way of getting rid of these?
Attachments
Screenshot_1514.png
elsksa
Licensed Customer
Posts: 784
Joined: Sat Jul 24, 2021 1:06 am

It's usually resolved by setting the same step length for the rendered volumes.

Worth mentioning, from viewtopic.php?f=24&t=78621&p=405646:
abstrax wrote: Better overlapping volumes

You can increase the maximal amount of overlapping volumes to be ray marched to 16. And we improved rendering of small dense volumes inside large volumes which usually have very different step lengths.

Image
HandcraftedMedia
Licensed Customer
Posts: 70
Joined: Thu Jan 10, 2019 12:15 am

Yep that was it. Once I changed the volume step length it went away! Thank you!
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